One-Anastomosis Gastric Bypass Versus Sleeve Gastrectomy for Morbid Obesity: a Systematic Review and Meta-analysis
Abstract
We aim to review the available literature on obese patients treated with one-anastomosis gastric bypass (OAGB) or laparoscopic sleeve gastrectomy (LSG), in order to compare the clinical outcomes and intraoperative parameters of the two methods. A systematic literature search was performed in PubMed, Cochrane Library, and Scopus databases, in accordance with the PRISMA guidelines. Seventeen studies met the inclusion criteria incorporating 6761 patients. This study reveals increased weight loss, remission of comorbidities, shorter mean hospital stay, and lower mortality in the OAGB group. The incidence of leaks and intra-abdominal bleeding was similar between the two approaches. Well-designed, randomized controlled studies, comparing LSG to OAGB, are necessary to further assess their clinical outcomes.
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There was a trend towards lower odds for morbidity for OAGB compared with sleeve gastrectomy (OR 0.67, 95% CI 0.28 to 1.61).
“The analysis favored sleeve gastrectomy in terms of diabetes and dyslipidemia remission and there was a trend towards lower odds for morbidity for OAGB (OR 0.67, 95% CI 0.28 to 1.61) (Supplementary Table S24).”
From Clinical practice guidelines of the European Association for Endoscopic Surgery (EAES) on bariatric surgery: update 2020 endorsed by IFSO-EC, EASO and ESPCOP (2020) · cites this paper as [116]
The analysis favored sleeve gastrectomy over OAGB in terms of diabetes and dyslipidemia remission.
“The analysis favored sleeve gastrectomy in terms of diabetes and dyslipidemia remission and there was a trend towards lower odds for morbidity for OAGB (OR 0.67, 95% CI 0.28 to 1.61) (Supplementary Table S24).”
From Clinical practice guidelines of the European Association for Endoscopic Surgery (EAES) on bariatric surgery: update 2020 endorsed by IFSO-EC, EASO and ESPCOP (2020) · cites this paper as [116]
Excess weight loss was more pronounced with sleeve gastrectomy than OAGB (WMD 20%, 95% CI 20 to 23), with high certainty in the evidence.
“EWL was more pronounced with sleeve gastrectomy (WMD 20%, 95% CI 20 to 23) and this finding was supported with high certainty in the evidence.”
From Clinical practice guidelines of the European Association for Endoscopic Surgery (EAES) on bariatric surgery: update 2020 endorsed by IFSO-EC, EASO and ESPCOP (2020) · cites this paper as [116]
Insufficient weight loss was the cause of 68.03% of the conversion to laparoscopic sleeve gastrectomy or Roux-en-Y gastric bypass after laparoscopic adjustable gastric banding.
“IWL was the cause of 68.03% of the conversion to LSG or RYGB after LAGB [99].”
Both conversions were associated with comparable weight loss at 6 and 12 months, although percentage excess weight loss and BMI reduction after 24 months were greater among the patients who underwent Roux-en-Y gastric bypass.
“Both conversions were associated with comparable WL at 6 and 12 months, although %EWL and BMI reduction after 24 months were greater among the patients who underwent RYGB [99].”
Cites
Bias in meta-analysis detected by a simple, graphical test
Egger, M., Smith, G. D., Schneider, M., & Minder, C. (1997) · BMJ · doi:10.1136/bmj.315.7109.629 · Cited by 56,722 · see citing works
Liberati, A., Altman, D. G., Tetzlaff, J., Mulrow, C., Gøtzsche, P. C., Ioannidis, J. P. A., Clarke, M., Devereaux, P. J., Kleijnen, J., & Moher, D. (2009) · PLoS Medicine · doi:10.1371/journal.pmed.1000100 · Cited by 28,164 · see citing works
Stang, A. (2010) · European Journal of Epidemiology · doi:10.1007/s10654-010-9491-z · Cited by 17,396 · see citing works
Cochrane Handbook for Systematic Reviews of Interventions Version 5.0.1. The Cochrane Collaboration
Higgins, J., Green, S. R., & Higgins, J. (2008) · Cited by 5,544 · see citing works
Bariatric Surgery Worldwide 2013
Angrisani, L., Santonicola, A., Iovino, P., Formisano, G., Buchwald, H., & Scopinaro, N. (2015) · Obesity Surgery · doi:10.1007/s11695-015-1657-z · Cited by 1,492 · see citing works
Mason, E. E., & Ito, C. (1967) · Surgical Clinics of North America · doi:10.1016/s0039-6109(16)38384-0 · Cited by 927 · see citing works
The Mini-Gastric Bypass: Experience with the First 1,274 Cases
Rutledge, R. R. (2001) · Obesity Surgery · doi:10.1381/096089201321336584 · Cited by 703 · see citing works
Colquitt, J. L., Picot, J., Loveman, E., & Clegg, A. J. (2009) · Cochrane Database of Systematic Reviews · doi:10.1002/14651858.cd003641.pub3 · Cited by 650 · see citing works
Chevallier, J. M., Arman, G. A., Guenzi, M., Rau, C., Bruzzi, M., Beaupel, N., Zinzindohoué, F., & Berger, A. (2015) · Obesity Surgery · doi:10.1007/s11695-014-1552-z · Cited by 280 · see citing works
Jammu, G. S., & Sharma, R. (2015) · Obesity Surgery · doi:10.1007/s11695-015-1869-2 · Cited by 259 · see citing works
Felsenreich, D. M., Langer, F. B., Kefurt, R., et al. (2016) · Surgery for Obesity and Related Diseases · doi:10.1016/j.soard.2016.02.021 · Cited by 219 · see citing works
“Mini” Gastric Bypass: Systematic Review of a Controversial Procedure
Mahawar, K. K., Jennings, N., Brown, J. S., Gupta, A. K., Balupuri, S., & Small, P. K. (2013) · Obesity Surgery · doi:10.1007/s11695-013-1026-8 · Cited by 214 · see citing works
Bruzzi, M., Rau, C., Voron, T., Guenzi, M., Berger, A., & Chevallier, J. (2014) · Surgery for Obesity and Related Diseases · doi:10.1016/j.soard.2014.09.004 · Cited by 181 · see citing works
Lee, W., Chong, K., Lin, Y., Wei, J.-H., & Chen, S. (2014) · Obesity Surgery · doi:10.1007/s11695-014-1344-5 · Cited by 172 · see citing works
Short-term Results of Laparoscopic Mini-Gastric Bypass
Wang, W., Wei, P., Lee, Y.-C., Huang, M., Chiu, C., & Lee, W. (2005) · Obesity Surgery · doi:10.1381/0960892053923752 · Cited by 149 · see citing works
Magouliotis, D. E., Tasiopoulou, V. S., Sioka, E., Chatedaki, C., & Zacharoulis, D. (2017) · Obesity Surgery · doi:10.1007/s11695-017-2595-8 · Cited by 148 · see citing works
Self-citationEffects of omega-loop bypass on esophagogastric junction function
Tolone, S., Cristiano, S., Savarino, E. V., Lucido, F. S., Fico, D., & Docimo, L. (2015) · Surgery for Obesity and Related Diseases · doi:10.1016/j.soard.2015.03.011 · Cited by 134 · see citing works
Musella, M., Apers, J. A., Rheinwalt, K. P., Ribeiro, R. J. D. S., Manno, E., Greco, F., Čierny, M., Milone, M., Stefano, C. D., Güler, S., et al. (2015) · Obesity Surgery · doi:10.1007/s11695-015-1865-6 · Cited by 119 · see citing works
Kular, K. S., Manchanda, N., & Rutledge, R. R. (2014) · Obesity Surgery · doi:10.1007/s11695-014-1264-4 · Cited by 107 · see citing works
LSG vs OAGB—1 Year Follow-up Data—a Randomized Control Trial
Seetharamaiah, S., Tantia, O., Goyal, G., Chaudhuri, T., Khanna, S., Singh, J. P., & Ahuja, A. (2016) · Obesity Surgery · doi:10.1007/s11695-016-2403-x · Cited by 107 · see citing works
Milone, M., Lupoli, R., Maietta, P., Minno, A. D., Bianco, P., Ambrosino, P., Coretti, G., Milone, F., Minno, M. N. D. D., & Musella, M. (2015) · International Journal of Surgery · doi:10.1016/j.ijsu.2014.12.025 · Cited by 82 · see citing works
Kueper, M. A., Kramer, K. M., Kirschniak, A., Königsrainer, A., Pointner, R., & Granderath, F. A. (2008) · World Journal of Surgery · doi:10.1007/s00268-008-9548-2 · Cited by 81 · see citing works
Outcomes of Omega Loop Gastric Bypass, 6-Years Experience of 1520 Cases
Taha, O., Abdelaal, M., Abozeid, M., Askalany, A., & Alaa, M. H. (2017) · Obesity Surgery · doi:10.1007/s11695-017-2623-8 · Cited by 81 · see citing works
Plamper, A., Lingohr, P., Nadal, J., & Rheinwalt, K. P. (2016) · Surgical Endoscopy · doi:10.1007/s00464-016-5085-5 · Cited by 75 · see citing works
Magouliotis, D. E., Tasiopoulou, V. S., Sioka, E., & Zacharoulis, D. (2016) · Obesity Surgery · doi:10.1007/s11695-016-2444-1 · Cited by 75 · see citing works
Self-citationMadhok, B., Mahawar, K. K., Boyle, M., Carr, W. R. J., Jennings, N., Schroeder, N., Balupuri, S., & Small, P. K. (2016) · Obesity Surgery · doi:10.1007/s11695-016-2181-5 · Cited by 61 · see citing works
Laparoscopic sleeve gastrectomy versus laparoscopic mini gastric bypass: One year outcomes
Kansou, G., Lechaux, D., Delarue, J., Badic, B., Gall, M. L., Guillerm, S., Bail, J. P., & Thereaux, J. (2016) · International Journal of Surgery · doi:10.1016/j.ijsu.2016.07.051 · Cited by 58 · see citing works
Carbajo, M. A., Fong-Hirales, A., Luque-de-León, E., Molina-López, J. F., & Ortiz-de-Solórzano, J. (2016) · Surgical Endoscopy · doi:10.1007/s00464-016-4990-y · Cited by 43 · see citing works
One-Anastomosis Gastric Bypass: First 407 Patients in 1 year
Lessing, Y., Pencovich, N., Khatib, M., Eldar, S. M., Korianski, J., & Abu‐Abeid, S. (2017) · Obesity Surgery · doi:10.1007/s11695-017-2668-8 · Cited by 40 · see citing works
Long-Term Evaluation of Biliary Reflux After Experimental One-Anastomosis Gastric Bypass in Rats
Bruzzi, M., Duboc, H., Gronnier, C., Rainteau, D. P., Couvelard, A., Gall, M. L., Bado, A., & Chevallier, J. (2017) · Obesity Surgery · doi:10.1007/s11695-017-2577-x · Cited by 40 · see citing works
Le mini-gastric bypass coelioscopique : une option nouvelle pour le traitement de l’obésité morbide
Noun, R., & Zeidan, S. (2007) · Journal de Chirurgie · doi:10.1016/s0021-7697(07)91957-2 · Cited by 21 · see citing works
Alexandrou, A. P., Michalinos, A., Athanasiou, A., Rosenberg, T., Tsigris, C., & Diamantis, T. (2014) · Obesity Surgery · doi:10.1007/s11695-014-1524-3 · Cited by 21 · see citing works
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El Ansari, W., & Elhag, W. (2021) · Obesity Surgery · doi:10.1007/s11695-020-05160-5 · Cited by 482 · see citing works
Di Lorenzo, N., Antoniou, S. A., Batterham, R. L., Busetto, L., Godoroja, D., Iossa, A., Carrano, F. M., Agresta, F., Alarçon, I., Azran, C., et al. (2020) · Surgical Endoscopy · doi:10.1007/s00464-020-07555-y · Cited by 465 · see citing works
Magouliotis, D. E., Tasiopoulou, V. S., Svokos, A. A., Svokos, K. A., Chatedaki, C., Sioka, E., & Zacharoulis, D. (2017) · Obesity Surgery · doi:10.1007/s11695-017-2924-y · Cited by 108 · see citing works
Self-citationWang, F.-G., Yu, Z.-P., Yan, W.-M., Yan, M., & Song, M.-M. (2017) · Medicine · doi:10.1097/md.0000000000008924 · Cited by 59 · see citing works
- Authors
- Magouliotis, D. E., Tasiopoulou, V. S., Svokos, A. A., Svokos, K. A., Sioka, E., & Zacharoulis, D.
- Affiliations
- University Hospital of Larissa (GR)
- University of Thessaly (GR)
- Riverside Regional Medical Center (US)
- Children's Hospital Colorado (US)
- Corresponding author
- Magouliotis, Dimitrios E.
- Venue
- Obesity Surgery
- Published
- 2017-07-05
- Volume
- 27
- Issue
- 9
- Pages
- 2479-2487
- ISSN
- 0960-8923 (ISSN-L)
- 1708-0428
- OpenAlex
- W2729182057
- Cited by
- 65
- References
- 32
- Citations by year
- 2026: 5 · 2025: 6 · 2024: 5 · 2023: 11 · 2022: 4 · 2021: 10 · 2020: 9 · 2019: 7 · 2018: 4 · 2017: 3 · 2016: 1
- FWCI
- 1.33
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Obesity Surgery (publishedVersion)
- PubMed (publishedVersion)
- University of Thessaly Institutional Repository (University of Thessaly) (submittedVersion)
- Topics
- Health Sciences › Medicine › Surgery › Bariatric Surgery and Outcomes
- Health Sciences › Medicine › Surgery › Minimally Invasive Surgical Techniques
- Health Sciences › Medicine › Surgery › Body Contouring and Surgery
- Keywords
- one anastomosis gastric bypass, laparoscopic sleeve gastrectomy
- MeSH terms
- Adult, Gastrectomy, Humans, Middle Aged, Obesity, Morbid, Gastric Bypass, Young Adult
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